US11326598B2 - Compressor - Google Patents

Compressor Download PDF

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Publication number
US11326598B2
US11326598B2 US16/652,921 US201816652921A US11326598B2 US 11326598 B2 US11326598 B2 US 11326598B2 US 201816652921 A US201816652921 A US 201816652921A US 11326598 B2 US11326598 B2 US 11326598B2
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United States
Prior art keywords
disposed
fixed scroll
reed valve
valve
ventilation hole
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US16/652,921
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English (en)
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US20200232461A1 (en
Inventor
Hideto Oka
Daisuke Funakoshi
Akinori Fukuda
Kenji Watanabe
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUKUDA, Akinori, OKA, HIDETO, WATANABE, KENJI, FUNAKOSHI, DAISUKE
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • F04C18/0261—Details of the ports, e.g. location, number, geometry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present disclosure relates to a compressor used for a heating/cooling air conditioner, a cooling device such as a refrigerator, or a heat-pump-type water heater.
  • refrigerant gas returning from a refrigeration cycle is supplied via a suction channel to a compression chamber formed in a compression mechanism.
  • the refrigerant gas that has been compressed to high temperature and high pressure is discharged from the compression mechanism into a closed container, and is fed from a discharge pipe disposed in the closed container into the refrigeration cycle (e.g., see Patent Literature 1).
  • FIG. 4A is a sectional view of a conventional scroll compressor disclosed in Patent Literature 1.
  • FIG. 4B is a plan view of fixed scroll 106 in the conventional scroll compressor. As shown in FIG. 4A and FIG. 4B , refrigerant gas of low temperature and low pressure is guided to compression chamber 109 via suction pipe 110 and suction chamber 111 , and is compressed by the change in volume of compression chamber 109 .
  • Discharge ports 112 are disposed in a center of fixed scroll 106 .
  • Reed valve 113 is disposed in fixed scroll 106 so as to block discharge ports 112 .
  • Muffler space 114 is formed in muffler 116 covering the upside of fixed scroll 106 .
  • the compressed refrigerant gas of high temperature and high pressure passes through discharge ports 112 to press and open reed valve 113 , and is discharged to muffler space 114 . Then, the refrigerant gas of high temperature and high pressure passes from muffler space 114 through discharge pipe 117 , and is fed to the refrigeration cycle.
  • valve stop 124 for restricting the lift amount (valve opening) of reed valve 113 is disposed near the center of the upper surface of fixed scroll 106 .
  • valve stop 124 restricts the area of the channel of refrigerant gas when the refrigerant gas goes out via reed valve 113 .
  • Muffler space 114 is also narrow, so that the refrigerant gas coming from discharge ports 112 are hard to pass through it. As a result, compression loss increases.
  • the present disclosure addresses the conventional problem, and provides a compressor of an efficiency increased by the suppression of the compression loss.
  • a compressor of one aspect of the present disclosure includes: a fixed scroll; at least one discharge port; a reed valve; a valve stop; and a ventilation hole.
  • the at least one discharge port is disposed in the fixed scroll.
  • the reed valve is disposed in the fixed scroll and opening and closing the at least one discharge port.
  • the valve stop is disposed in the fixed scroll, and restricts the lift amount of the reed valve.
  • the ventilation hole is disposed in the valve stop.
  • the flow of the refrigerant gas is smoothed to suppress the compression loss, and the force applied to the reed valve can be suppressed. As a result, the efficiency and reliability can be improved.
  • FIG. 1 is a sectional view of a compressor in accordance with an exemplary embodiment of the present disclosure.
  • FIG. 2 is an enlarged sectional view showing an essential part of the compressor in accordance with the exemplary embodiment.
  • FIG. 3A is a plan view of a fixed scroll in the compressor in accordance with the exemplary embodiment.
  • FIG. 3B is a diagram showing the positional relationship between a reed valve and a ventilation hole.
  • FIG. 3C is a diagram showing the distance between a discharge port and the ventilation hole.
  • FIG. 4A is a sectional view of a conventional scroll compressor.
  • FIG. 4B is a plan view of a fixed scroll in the conventional scroll compressor.
  • a compressor of a first aspect of the present disclosure includes: a fixed scroll; at least one discharge port; a reed valve; a valve stop; and a ventilation hole.
  • the at least one discharge port is disposed in the fixed scroll.
  • the reed valve is disposed in the fixed scroll and opening and closing the at least one discharge port.
  • the valve stop is disposed in the fixed scroll, and restricts the lift amount of the reed valve.
  • the ventilation hole is disposed in the valve stop.
  • a compressor of a second aspect of the present disclosure in addition to the first aspect, includes the configuration in which the at least one discharge port has a plurality of discharge ports, and a ventilation hole is disposed between two adjacent discharge ports, of the plurality of discharge ports.
  • a compressor of a third aspect of the present disclosure in addition to the first aspect, includes the configuration in which a ventilation hole is disposed in a part of the valve stop that does not come into contact with the reed valve.
  • a compressor of a fourth aspect of the present disclosure in addition to the first aspect, includes the configuration in which a ventilation hole is disposed in parallel with the reed valve.
  • FIG. 1 is a sectional view of a compressor in accordance with the present exemplary embodiment.
  • FIG. 2 is an enlarged sectional view showing an essential part of the compressor in accordance with the exemplary embodiment.
  • the compressor in accordance with the exemplary embodiment includes compression mechanism 2 and electric motor 3 that are disposed in closed container 1 .
  • Main bearing member 4 is fixed to the inside of closed container 1 by welding or shrink fitting. Main bearing member 4 pivotally supports shaft 5 .
  • Fixed scroll 6 is attached on main bearing member 4 with a bolt.
  • Scroll-type compression mechanism 2 is formed by sandwiching orbiting scroll 7 , which is engaged with fixed scroll 6 , between fixed scroll 6 and main bearing member 4 .
  • Compression chamber 9 is formed between fixed scroll 6 and orbiting scroll 7 .
  • rotation restraint mechanism 8 is disposed between orbiting scroll 7 and main bearing member 4 .
  • Rotation restraint mechanism 8 is formed of an Oldham ring or the like that prevents the rotation of orbiting scroll 7 and moves orbiting scroll 7 in circular orbit.
  • Eccentric shaft 5 a is disposed at the upper end of shaft 5 .
  • Suction pipe 10 is connected to the refrigeration cycle outside closed container 1 .
  • Suction chamber 11 is disposed in fixed scroll 6 that is disposed between suction pipe 10 and compression chamber 9 , and always has suction pressure.
  • Discharge port 12 is disposed in the center of fixed scroll 6 . In the present exemplary embodiment, three discharge ports 12 are disposed (see FIG. 3A ). Reed valve 13 is disposed on the upper surface of fixed scroll 6 so as to block discharge ports 12 .
  • Muffler space 14 is a space covered with muffler 16 attached on the upper surface of fixed scroll 6 .
  • valve stop 24 for restricting the lift amount (valve opening) of reed valve 13 is disposed near the center of the upper surface of fixed scroll 6 .
  • pump 18 is disposed at the lower end of shaft 5 for rotating and driving orbiting scroll 7 .
  • Pump 18 is disposed so that its suction port is positioned in oil reservoir 19 that is disposed in the bottom of closed container 1 .
  • Pump 18 is driven simultaneously with a scroll compressor. Therefore, pump 18 certainly sucks oil in oil reservoir 19 regardless of the pressure condition or operation speed.
  • the oil sucked by pump 18 is supplied to compression mechanism 2 through oil supply hole 20 penetrating shaft 5 .
  • oil supply hole 20 penetrating shaft 5 When a foreign matter is removed from the oil using an oil filter or the like before or after the oil is sucked by pump 18 , the foreign matter can be prevented from entering compression mechanism 2 .
  • the pressure of the oil guided to compression mechanism 2 is substantially equal to the discharge pressure of the scroll compressor, and also acts as a back pressure source to orbiting scroll 7 .
  • orbiting scroll 7 does not separate from fixed scroll 6 , and stably exerts a predetermined compression function.
  • a part of the oil due to the supply pressure or its own weight, enters an engagement portion between eccentric shaft 5 a and orbiting scroll 7 and enters bearing portion 21 between shaft 5 and main bearing member 4 .
  • the part of the oil lubricates these elements, and then returns to oil reservoir 19 .
  • Channel 7 a is formed in orbiting scroll 7 , and has an opening end in high pressure region 22 .
  • Rotation restraint mechanism 8 is disposed in back pressure chamber 23 .
  • the oil having entered back pressure chamber 23 lubricates a thrust sliding portion and a sliding portion of rotation restraint mechanism 8 , and applies a back pressure to orbiting scroll 7 in back pressure chamber 23 .
  • the refrigerant gas compressed by compression mechanism 2 passes through discharge port 12 and reed valve 13 , and is discharged to muffler space 14 .
  • Valve stop 24 restricts the area of the channel of the refrigerant gas when the gas goes out through reed valve 13 .
  • Muffler space 14 is also narrow, so that the refrigerant gas is hard to pass through it.
  • FIG. 3A is a plan view of a fixed scroll in the compressor in accordance with the exemplary embodiment.
  • FIG. 3B is a diagram showing the positional relationship between reed valve 13 and ventilation holes 25 .
  • FIG. 3C is a diagram showing the distances between discharge ports 12 and ventilation holes 25 .
  • each ventilation hole 25 has a slot shape including a rectangular portion and circular arc portions. Each of the circular arc portions is disposed at a respective one of two short edges of the rectangular portion. Ventilation holes 25 increase the area of the channel of the refrigerant gas. As a result, the refrigerant gas flows smoothly to suppress the compression loss.
  • Each ventilation hole 25 is disposed between two adjacent discharge ports 12 . Thus, even when any one of three discharge ports 12 opens, the compression loss can be effectively suppressed.
  • Forming ventilation holes 25 can suppress the force applied to reed valve 13 . Therefore, the efficiency and reliability can be improved.
  • Ventilation holes 25 are disposed in a part of valve stop 24 that does not come into contact with reed valve 13 .
  • ventilation holes 25 do not interfere with reed valve 13 . Therefore, the damage of reed valve 13 that may be caused when reed valve 13 comes into contact with a periphery of ventilation holes 25 can be prevented. As a result, the efficiency and reliability can be improved.
  • Ventilation holes 25 each having a slot shape are disposed in parallel with reed valve 13 .
  • the area of the channel of the refrigerant gas can be further increased.
  • the refrigerant gas flows more smoothly and can suppress the compression loss.
  • a maximum of the distances between ventilation holes 25 and discharge ports 12 is 10 mm (see, A dimensions 26 shown in FIG. 3C ).
  • refrigerant gas more easily passes.
  • the refrigerant gas flows more smoothly, and can suppress the compression loss.
  • three discharge ports 12 are disposed. However, two or four or more discharge ports 12 may be disposed.
  • a compressor of the present disclosure can suppress the compression loss by smoothing the flow of refrigerant gas, and can suppress the force applied to a reed valve. As a result, the efficiency and reliability can be improved.
  • the compressor of the present disclosure can be applied to various apparatuses used for the refrigeration cycle.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Check Valves (AREA)
US16/652,921 2017-10-20 2018-10-01 Compressor Active 2039-01-17 US11326598B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JPJP2017-203074 2017-10-20
JP2017-203074 2017-10-20
JP2017203074 2017-10-20
PCT/JP2018/036625 WO2019077979A1 (ja) 2017-10-20 2018-10-01 圧縮機

Publications (2)

Publication Number Publication Date
US20200232461A1 US20200232461A1 (en) 2020-07-23
US11326598B2 true US11326598B2 (en) 2022-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US16/652,921 Active 2039-01-17 US11326598B2 (en) 2017-10-20 2018-10-01 Compressor

Country Status (4)

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US (1) US11326598B2 (ja)
JP (1) JP7199019B2 (ja)
CN (1) CN111226038A (ja)
WO (1) WO2019077979A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220235774A1 (en) * 2019-04-26 2022-07-28 Emerson Climate Technologies (Suzhou) Co., Ltd. Scroll compressor
US12092109B2 (en) * 2023-01-12 2024-09-17 Lg Electronics Inc. Scroll compressor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586053U (ja) 1981-07-06 1983-01-14 本田技研工業株式会社 リ−ド弁装置
US5855475A (en) * 1995-12-05 1999-01-05 Matsushita Electric Industrial Co., Ltd. Scroll compressor having bypass valves
JP2001329975A (ja) 2000-05-19 2001-11-30 Fujitsu General Ltd スクロール圧縮機
US20020114720A1 (en) * 2000-06-22 2002-08-22 Takahide Itoh Scroll compressor
JP2003328965A (ja) 2002-05-15 2003-11-19 Matsushita Electric Ind Co Ltd スクロール圧縮機
CN102042224A (zh) 2009-10-14 2011-05-04 松下电器产业株式会社 涡旋式压缩机
JP2015129476A (ja) 2014-01-08 2015-07-16 株式会社豊田自動織機 電動圧縮機
US10400772B2 (en) * 2013-08-07 2019-09-03 Emerson Climate Technologies (Suzhou) Co., Ltd. Scroll compressor having valve component arranged in passage of back pressure cavity and providing openings for passage of fluid

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640137Y2 (ja) * 1986-06-27 1994-10-19 ヱビナ電化工業株式会社 フロツピ−デイスク用保管容器
JPS636053U (ja) * 1986-07-01 1988-01-16
KR100565493B1 (ko) * 2003-09-17 2006-03-30 엘지전자 주식회사 왕복동식 압축기
JP2008115767A (ja) * 2006-11-06 2008-05-22 Matsushita Electric Ind Co Ltd スクロール圧縮機
JP5621461B2 (ja) * 2009-10-14 2014-11-12 パナソニック株式会社 スクロール圧縮機
JP5921408B2 (ja) * 2012-10-16 2016-05-24 三菱電機株式会社 吐出弁装置およびそれを備えたスクロール圧縮機
JP2015140709A (ja) * 2014-01-28 2015-08-03 トヨタ自動車株式会社 ベーン式バキュームポンプ

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586053U (ja) 1981-07-06 1983-01-14 本田技研工業株式会社 リ−ド弁装置
US5855475A (en) * 1995-12-05 1999-01-05 Matsushita Electric Industrial Co., Ltd. Scroll compressor having bypass valves
JP2001329975A (ja) 2000-05-19 2001-11-30 Fujitsu General Ltd スクロール圧縮機
US20020114720A1 (en) * 2000-06-22 2002-08-22 Takahide Itoh Scroll compressor
JP2003328965A (ja) 2002-05-15 2003-11-19 Matsushita Electric Ind Co Ltd スクロール圧縮機
CN102042224A (zh) 2009-10-14 2011-05-04 松下电器产业株式会社 涡旋式压缩机
US10400772B2 (en) * 2013-08-07 2019-09-03 Emerson Climate Technologies (Suzhou) Co., Ltd. Scroll compressor having valve component arranged in passage of back pressure cavity and providing openings for passage of fluid
JP2015129476A (ja) 2014-01-08 2015-07-16 株式会社豊田自動織機 電動圧縮機

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
English Translation of Chinese Search Report dated Dec. 29, 2021 for the related Chinese Patent Application No. 201880067412.3, 2 pages.
English Translation of Chinese Search Report dated May 8, 2021 for the related Chinese Patent Application No. 201880067412.3, 2 pages.
International Search Report issued in International Application No. PCT/JP2018/036625, dated Dec. 25, 2018, 4 pages with translation.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220235774A1 (en) * 2019-04-26 2022-07-28 Emerson Climate Technologies (Suzhou) Co., Ltd. Scroll compressor
US12078174B2 (en) * 2019-04-26 2024-09-03 Copeland Climate Technologies (Suzhou) Co. Ltd. Scroll compressor
US12092109B2 (en) * 2023-01-12 2024-09-17 Lg Electronics Inc. Scroll compressor

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Publication number Publication date
JP7199019B2 (ja) 2023-01-05
WO2019077979A1 (ja) 2019-04-25
US20200232461A1 (en) 2020-07-23
JPWO2019077979A1 (ja) 2020-11-05
CN111226038A (zh) 2020-06-02

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